Left 4 Dead 2 - Grey Scale Finale
Grey Scale is an outstanding Left 4 Dead 2 custom add-on campaign, it's an older campaign and for whatever reason it is no longer available on l4d2maps.com however I have a link to my copy below, anyway with five challenging levels, great detail and a kick ass finale, you won't be disappointed with this campaign, hope you enjoy the video. :)
Here is the download link for this L4D2 custom map:
http://www.mediafire.com/?br9igb3eacm...